tree f5178184a94fb8343afee94a5b7cd47c05a2bc49
parent e7507ed91e093b9e4e218e41ebfdce05458258fc
author Zach Brown <zach.brown@oracle.com> 1129592613 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1129593837 -0700

[PATCH] aio: revert lock_kiocb()

lock_kiocb() was introduced to serialize retrying and cancellation.  In the
process of doing so it tried to sleep waiting for KIF_LOCKED while holding
the ctx_lock spinlock.  Recent fixes have ensured that multiple concurrent
retries won't be attempted for a given iocb.  Cancel has other problems and
has no significant in-tree users that have been complaining about it.  So
for the immediate future we'll revert sleeping with the lock held and will
address proper cancellation and retry serialization in the future.

Signed-off-by: Zach Brown <zach.brown@oracle.com>
Acked-by: Benjamin LaHaise <bcrl@kvack.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>